Tert-butyl 6-hydroxyhexahydro-1H-cyclopenta[c]pyridine-2(3h)-carboxylate
Tert-butyl 6-aminohexahydro-1H-cyclopenta[c]pyridine-2(3h)-carboxylate
Tert-butyl 6-oxohexahydro-1H-cyclopenta[c]pyridine-2(3h)-carboxylate
Octahydrospiro[cyclopenta[c]pyridine-6,2'-[1,3]dioxolane]